//
//  MainTabBar.swift
//  SinaWeibo
//
//  Created by rms on 15/10/6.
//  Copyright © 2015年 rms. All rights reserved.
//

import UIKit

class MainTabBar: UITabBar {

    override func layoutSubviews() {
        super.layoutSubviews()
//        print(subviews)
        var index:CGFloat = 0
        
        let w = UIScreen.mainScreen().bounds.width / 5
        let h = self.bounds.height
        let frame = CGRectMake(0, 0, w, h)
        
        for view in subviews {
        
            if view is UIControl && !(view is UIButton){
            
                view.frame = CGRectOffset(frame, index * w, 0)
                
                index += (index == 1 ? 2 : 1)
            
            }
        }
        
        composeButton.frame = CGRectOffset(frame, 2 * w, 0)
    }
    
    
    
    
    lazy var composeButton:UIButton = {
    
        let btn = UIButton(type: UIButtonType.Custom)
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button"), forState: UIControlState.Normal)
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button_highlighted"), forState: UIControlState.Highlighted)
    
        btn.setImage(UIImage(named: "tabbar_compose_icon_add"), forState: UIControlState.Normal)
        btn.setImage(UIImage(named: "tabbar_compose_icon_add_highlighted"), forState: UIControlState.Highlighted)
        
        self.addSubview(btn)
        return btn
    }()
}
